Gas-generator.



H- W. HAMILTON.

GAS GENERATOR.

APPLIGATION FILED 050.11, 1911.

Patented Oct. 27, 1914.

Uh human lid lllNlllE @ATS PATEN OFFlwril.

ARMY W. HAMILTON, 0F INDIANAJE'OLIS, INDIANA, ASSIGNOR TO THE HAM-MEIMANUF ACT URING COMPANY, INDTANA.

GAS-GENERATOR.

Specification of Letters Patent.

Patented Oct. 27, 1914;

Application filed Iiecember 11, 1911. Serial 1T0. 664,982.

To all whom. it may co'nocm:

Be it known that I, HARRY W. HAMILTON, s citiuen o'f the United States,residing at .lndiunupolis, in the county of Marion and Stain of Indians,have invented it new and useful Gus-Generator, of which the following isa specification.

The object of my invention. is to produce u gas generator of suchcharacter that its germ-sting notion will. he automatically dependentupon withdrawal of generated gas therefrom, the construction being suchthul. u material and pmdetcrmincd quantity of gas must be Withdrawn fromthe appsratus before new generation can he started, and such thnt thesupply of muterisl resulting in regeneration Will be discontinued be-:iioro completion of any particular gas generating action.

My improved apparatus has been more especially designed for thegeneration of ucctylenc gas under such conditions that compurutivclylarge volumes of gas may be withdrawn therefrom in such manner as toinsure subsequent generation of an amount of gas substantially equal tothnt withdrawn, but without danger of over-gas production, the generatorbeing therchy especially adapted for use in supplying to an internalcombustion engine u sulhcient qiuintity of. acetylene or similar gusunder suilicieut pressure to start the engine from rest.

The nccompzmying drawings illustrate nomewhnt diugrumruuticully myinvention.

l igurc 1 is an axial section of un cmhodimost of my invention appliedto an internal comluistion engine; Fig. 2 n. detail of the water supplycheck vulve, and. Fig. 3 u dotuil oi the gas return check valve.

In the dru. wings, ll) indicates a gencruting tank or chamber adapted toreceive at supply of material 11, such for instance as culcium curhid,us one of the elcmcnls from Which the desired gas is to be generated.Arranged in the upper part of chamber 11 is u wider distributing head orsprinkler 19 through which wuler may he delivered to the cur-hid.l/Vutcr is supplied to the head 12 by means of o pipe 13. a. check valve'11 being placed between pipe 1 and head 12. Thu said check valve soarranged as to prevent any flow of gus "from chamber 10 lmclcwurdthrough pipe 13 and also an mnpcd to oil'er a predetermined resistanceto flow of water through pipe 13 to head 12.

At its opposite cud pipe 13 leads-from the lower part of the water tank15.

In the present form of my apparatus I have shown the tanks 10 and 15 asseparable and for that reason provide pipe 13 With a pair of controllingvalves '16, 16 and an intermediate coupling 17 It will be readilyunderstood, however, that the two compartments or tanks 10 and 15 neednot he separuhlc unless desired.

Imuding from the upper part of tank 10 is a pipe 18 the opposite end ofwhich communicates with the interior of tank 15 and arranged in thispipe 18 is u check valve 19,

which prevents any flow through. pipe 18 from tank 15 to tunk 10, thecheck valve 19 hciiu so arranged as to also offer a predeterminedresistance to flow from tank 10 to tank 15. The point of connection ofpipe 18 to tunk 15 is not especially material although I prefer to lendpipe 18 from a low point in tank 15 so that the check valve 19 uuiy-huvcthe benefit of the seal provided by the body of wulcrQl in the tank 15,it being easier to maintain the check valve 19 tight under suchconditions. Pipe 18 is provided with valves 16, 16 and coupling 17, likepipe 13. A desired quantity of Water may he introduced into tunk 13through a filling passage 9.2 covered by u tight cap 23. The curhid 11may be introduced into tank 10 through any suituhle opening such, forinstance, us an opening 24 in one head of the tank and, in order tostart gus generation, opening 2-1 is closed by means of a cup 25provided with u wutcr cup 26 which, when the cup 25 is turned to tightclosing position, will deliver its water to the curbid 11. A suitabledischarge pipe 27 provided with a filler Q9 and a controlling valve 98is provided for cduction of gas from tank 10.

The operation is as follows: A. measured quantity of cur-hid 11 isintroduced into tank 10 and u corrcspomling quantity of water 21 isintrmluccd into tank 14. When a quantity of water is then introduced tothe (.l'll'l'lld by means of a cup 26 to cause an initial production ofu quantity of gas within tuuk 10, there will he a generation of gas and.upon an accumulation oi pressure in tank 10 sullicient to overcome theresistance of check valve 19 some of the gas will puss ovcr through pipe'18 into tank 15 and this movement of gas will continue until the gaspressure within tank 15 will be as much less than the pressure in tank10 as the resistance offered by the two check valves 19 and 1 1. Whenthe supply of water introduced to the carbid has been consumed, therewill be a discontinuance of gas generation and the apparatus will standindefinitely without further generation until there is a withdrawal ofgas through pipe 27. When this Withdrawal takes place to a sufficientvolume, the pressure Within tank 15 will serve to drive a limitedquantity of Water from tank 15 through pipe 13 past check valve let intoand through head 12 but the check valve 14 will serve to prevent a rushof too great a quantity of Water and, as the generation of the gasbegins immediately upon the introduction of Water to the carbid, therewill be an upbuilding of pressure Within tank 10. which Will serve toclose check valve 14 against the further delivery of water before therehas been sutlicient gas generation to produce the desired maximumpressure. The flow of Water will therefore cease While the generation ofgas continues until desired maximum pressure is attained and asutficient amount of gas has passed .over through pipe 18 into tank 15to compensate for the small outflow of Water from tank 15. The checkvalves 14- and 19 thus serve to prevent too great a flow of water to thecarbid as a result of the sudden withdrawal of a desired quantity ofgas. As a consequence, the generator is especially applicable forfurnishing acetylene or other similar gas to the cylinders of aninternal combustion engine in order to initially start such an engine,because by such an arrangement the sudden Withdrawal from a generator ofa material portion of the generated gas therein, cannot operate todeliver to the remaining carbid so great a quantity of Water as willresult in an over-production of gas.

- I claim as my invention:

1. A gas generator comprising a generating chan'iber arranged to containone gas forming material, a second chamber ar ranged to contain anothergas forming material, two passages forming independent and non-gravitycommunications between the two chambers, a check valve mounted in 'oneof said passages,to prevent flow from the generating chamber to thesecond cham her and to offer a predetermined resistance to flow from thesecond chamber toithe gencrating chamber,-and a check valve mounted inthe other passage and preventing flow through said passage from thesecond chamber to the generating chamber.

'2. An acetylene gas generator comprising a generating chamber and awater chamber, a leading from the bottom of t 1,1 reca l Water chamberto the upper part of the gencrating chamber without possibility ofgravity flow from the .Water chamber to the gencrating chamber andprovided at its genera tor-chamber. end with a distributing head, a

check valve arranged in said passage to prevent flow therethrough fromthe generating chamber to the water chamber and to offer a predeterminedresistance to flow from the water chamber to the generating chamber, asecond passage forming a communication between the generating-chamberand water chamber and opening into the generating chamber below theWater level therein, and a check valve arranged in said second passagefor preventing fiow from the Water chamber to the generating chamber.

An acetylene gas generator comprising a generating chamber and "a Waterchamber, a passage leading from the bottom of the water-chamber to theupper part of the generating chamberwithout possibility of gravity flowfrom the Water chamber to the gehcrating chamber and provided at itsgenerator-chamber end with a distributing head, a check valve arrangedin said passage to prevent flow therethrough from the 'enerating chamberto the water chamber and to ofi'er a predetermined resistance to flowfrom the water chamber to the generating chamber, a second passageforming a communication between the generating chamber and Waterchamber, and a check valve arranged in said second passage forpreventing flow from the water chamber to the generating chamber.

4. A gas generator comprising a generating chamber arranged to containone gastorming material, a second chamber arranged to contain anothergas-forming ma terial, the two passages forming independent andnon-gravity communications between the two chambers, and check valvesarranged in said two passages and prevent in flow in opposite directionsrespectively.

a. .An acetylene as generator comprising a generating chamber and awater chamber, two passages connecting said two chambers and eachopening into the water chamber below the water level therein, and acheck valve arranged in each of said passages, one of said check valvespreventing flow through it from the water chamber to the generatingchamber and the other preventing flow through it from the generatorchamber to the ater chamber.

In witness whereof I have hereunto set my hand and, soul atIndianapolis, Indiana, this 1th day of December, A. D. one thou sandnine hundred and eleven.

HARRY \V. HAMILTON. [n s.]

Witn

G. B. SCIELEY, FRANK A. FAI-ILE.

